Sewer-pipe section for sewer-building.



W. H. ROOK, JB. SEWER PIPE SECTION FOR SEWER BUILDING, APPLIGATIOSN FILED JUNE 1, 1912.

1 3 PatentdSept 3,191 2.

UNITED stra nsoration,-

'WILIQIAM H. 300K, m1, or axnon, OHIO.

snwnnsrlrn sno'rIoN ron SEWER-BUI DING; I

TO all whomit may concern A gBeit l rnown that 1, WILLIAM-- Rook, J r., a citizen of the United States, residing at. Akron, in the. county of Summit and:

State of Ohio, have invented new and useful Improvements, in Sewer-Pipe Sections for Sewer-Building, of'which the following is a specification. x p

This invention relates to sewer pipe sec- More specifically, the invention resides in forming a sewer pipe section with one ofthe lateral walls thereof'provided with a longitudinally-extending and laterally-projecting rib and with'the opposite lateral wall pro-- vided with a groove, both groove and rib preferably formed with their "faces in the arcs of circlegothe radius of the circle in which the face of the projection is formed being less than the radius of the are of which the face of the groove forms a pore tion, so that when the groove of a sect-ion is received'or is-interlocked with the rib of a complementary section, a considerable pivotal movement inwardly and outwardly toward and away from the axial line of the sewer is permitted to enable similar sewer pipe sections constructed in accordance with this invention to be employed for constructingsewers-having different diameters.

With the foregoing and other objects in view, the invention consists in the novel construction, combination and arrangementof parts constituting the invention-to be hereinafter specifically described and illustrated in the accompanying drawings which form a part hereof wherein is'shown the preferredembodiment ofthe invention, but it is to be understood that changes,'variations and modifications can-be resorted to which come within the scope of the claims hereunto appended.

In the drawings in which similar refer" v ferent figures:

Figure 1,'is a perspective View of a sewerv pipe section embodying this invention; Fig.

2, is a transverse sectional v ew of a portlon tion's used for building sewers and other tubular conduits, and the object thereof is,

, nce numcrals'indicate like parts the/ (lif Specification of Letters Patent. Patented Se t, 3-, 19123 Application filedJunej, v191.2. Serial No. voa aecfi of a sewer constructed of sections siniilarto theone shown in Fig. 1; and, Fig.-- 8 is View similar to Fig. 2 of asewer having a greater radius than that shown in Fig; 2.

Referring to'the drawings in detail, the; reference numerals l and 2 denote respec"' tively, the nner and outer walls otja section of sewerpipe' and preferably united by at least one longitudinally-extending radial web 3. The segment is further provided with lateralwalls 4- and 5' which are in turn united by means of a transversely-extending web 6which also unites with the radial web 3. These walls and webs are all formed simultaneously of the same material to" thereby set up an integral structure. The wall'lis provided with a longitudinally-extending and laterally-projecting irib 7 preferably formed with its outer face i-n cross section in the arc of a circle, and the lateral wall 5 is formed wit-h .a longitudinally-extending centrally-placed groove 8 preterably formed'in cross-section in the arc of a circle, the radius otwhich is greater than the radius-of the arc described by the outer face of the projection 7. outer walls 1 and 2 arepreferably parallel and the inner wall. is formed upon the arc of a circle approximating the curvature of The inner and the interior of a sewer to be constructed from these se ments and which it is conten1- P plated, as will herelnafter more fully ap pear, may be one of a series ofsewers of In constructing a sewer, the sections are assembled around a supporting form with the ribs 7 .positiohedwithin the grooves 8 of contiguous sections, and the joints be tween. them filled with a binding element 9 such as cement or mortar. The construction of a sewer using this typeof block does not I difie'r mat'erially'from the methods employed -in ordinarily built up walls, and, of course, {the sections will break joints Y in the R nal "manner; a

lie

When the radius of the interior of the sewer to-be constructed is less than the -radius-ofth'e arc of the inner wall l the disposal of the segments will be substantially the same as in Figs. 1 and 2 withthe spaces- -for the binding "element wider 'atIthe outer face-of the sewer. If thesewerto be-cmstructed has a radius greater than the radius of the circle of which the inner wall 1 permitting the use of the' same shaped sections in sewers having difierent diameters without the changing the forms of sections for each diameter of sewer built.

It W111 he noted that bv forming the projections 7 upon the arcs of circles having shorter radii than the radii of the arcs upon which the grooves 8 are constructed provides pivotal joints .between coadjacent sections which permit the sections to be shifted or their relative positions changed to accommo-- date them 'to sizes' -otsewers of various diameters without destroying or impairing the interlocking, qualities of these sections.

I claim:-

'1. A sewer pipe section for the purposes described comprising a. body member of burned earthenware and comprising inner and outer parallel curved walls united at. their ends by lateral radial walls, one of said lateral walls provided with a longitudinallyextending and laterally-projecting rib,.the

lateral face'oflsaid-rih formed in the arc of a circle in-cross section, the opposite lateral wallprovided with a longitudinally-extending groove, the face of .said groove being formed in the arc "ofa circle in cross section,

the radius of the .arc described by said rib" being less than the radius of the are described by said groove, whereby when. two

sections are laterally juxtapositioned with therib' of one section seated within thegroove of another section each of said sections is'adjustable radially with respect to the other section. i

2. A sewer pipe section comprising a hollow body member of vitreous material and comprising inner and outer parallel curved walls united at their ends by lateral radial. walls, one ofsaid' lateral walls provided with a longitudinally-extending and laterally-projecting 'rib,'the opposite lateral wall provided with alongitudinallyextending recess larger in cross section than said rib, whereby when two sections are laterally juxtapositioned with the rib of one section received within the recesspf a coadjacent section, each section is adjustable radially with respect to the other section.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WILLIAM H. BOOK, J R. 

